239 / | HD | FLUID SPRINKLING, SPRAYING, AND DIFFUSING |
461 | DF | FLOW DEFLECTING OR ROTATION CONTROLLING MEANS {9} |
518 | DF | .~ Deflector and terminal flow element {4} |
521 | .~.~ Deflector on one side of flow path {2} | |
522 | DF | .~.~.~> Multiple or discrete deflecting surfaces |
523 | DF | .~.~.~> Dished or arcuate deflector |